TY - JOUR AU - V. F. Gaposhkin TI - Observation on a work of P.~R\'ev\'esz on multiplicative systems of functions JO - Matematičeskie zametki PY - 1967 SP - 653 EP - 656 VL - 1 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_1967_1_6_a3/ LA - ru ID - MZM_1967_1_6_a3 ER -